<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div>
        <ul>
            <li id="l1">张三</li>
            <li>李四</li>
            <li id="l2">王五</li>
            <li>赵六</li>
            <a href="">测试</a>
            <span>嘿嘿嘿</span>
        </ul>
    </div>

    <a href="" id="a1" title="a2" class="a1">百度</a>
    <div id="d1">
        <span>
            哈哈哈
        </span>
    </div>

    <p id="p1" class="p1">呵呵呵</p>
</body>
</html>